All Kowa spotting scopes, binoculars, or other optical products sold through a United States or Canadian authorized Kowa dealer come with a Limited Lifetime Warranty*. This warranty gives you specific legal rights and you may have other rights which vary from state to state. Your Kowa spotting scope, binocular, or other optical product is warranted to be free of defects in material and workmanship for the lifetime of the product.

Please call Kowa office to receive an RMA (return merchandise authorization) number before shipping the product to Kowa.

Call Kowa for more information at 1-800-966-5692

Kowa 66mm Spotting Scope Eyepieces

Multiple interchangeable eyepieces available including 20x-60x Zoom;
30x Wide Angle; and 25x Long Eye Relief for total versatility in the
field. Eyepiece locking mechanism prevents the eyepiece from falling
out or getting lost. Converters allow users to utilize eyepieces
from other Kowa spotting scope series.

These high-performance models have been created by balancing size and performance. The superior optical design inherited from the TSN-820M Series gives the TSN-660 Series features on a par with much larger scopes in a smaller, more compact size. These sophisticated scopes satisfy the needs of users in all fields, from beginning bird watchers to scientific researchers.

Fluorite has an outstanding feature of very low dispersion that cannot be found in regular optical glass. This characteristic enables
Kowa scopes to almost completely eliminate color blur. The richness and clarity of these new scopes set a whole new standard
for the very top end optics.

Kowa's Optical Coatings are of a new proprietary design and provide light transmission of 99% or higher across the
entire visible spectrum. Not only does this provide bright and sharp images, but accurate color reproduction is also achieved.

The magnesium alloy body makes the scopes very rugged and light weight. Their compact size makes them easy to carry and
handle. The waterproof housing meets the rigorous standards of JIS Protection Class 7 and they are charged with dry nitrogen gas
to prevent fogging. These qualities makes them an ideal companion in the great outdoors.

Kowa's Utilizes a new innovative inner focus system to decrease image movement when focusing on objects-even single handed.

Kowa offers a total solution for Digiscoping that allows enthusiasts to combine the high optical performance of Kowa’s scopes with the quality of various digital, SLR and video cameras in a revolutionary way. Their complete system of adapters offers users the opportunity to observe, photograph and film nature with integrated functionality that was previously unimaginable.

The extension ring goes between the TSN-LS2 Digital Camera Adapter and either the camera filter adapter or the TSN-DA4 Universal Camera Mount. It both allows for the greater length of the zoom eyepieces and gives access to the eyepiece's zoom ring so you can zoom the eyepiece with the camera in place.

662/664 Straight Case
Optional stay-on-scopes cases have been designed specially to protect the TSN 660 Spotting Scope
Series. The all-weather cases are ergonomically and functionally designed to guarantee extremely
efficient use in the field and help to protect your new scope. We highly recommend this addition.